User manual

Connect Tech FreeForm/PCI-104 User Manual
Revision 0.07 11
Connector Pinouts
PCI-104 Header (P1)
Refer to PCI-104 specifications.
Note: The FreeForm/PCI-104 only requires the 5V power supply,. The board is compatible with
PCI-104 mother boards that supply just 5V or both 3.3V & 5V.
JTAG Programming Header (P2)
Use P2 to configure the FPGA via JTAG. Refer to FPGA Configuration for more information.
Power pins are for voltage reference only; they do not provide power to the configuration
circuitry.
Note that the FPGA can always be programmed via JTAG, regardless of the J1 configuration
setting.
Table 4: JTAG Programming Header Pinout (P2)
Pin
Signal
Direction
P2
JTAG Header
1
Top View
1
TRST
Input
2
TMS
Input
3
TDI
Input
4
TDO
Output
5
TCK
Input
6
GND
Reference
7
3.3V
Reference
SPI Flash Programming Header (P3)
P3 may be used to directly program the SPI flash, providing that J1 is set correctly to the tri-state
FPGA position. The power pins are for voltage reference only. They do not provide power to the
configuration circuitry.
Table 5: SPI Flash Programming Header Pinout (P3)
Pin
Signal
Direction
1
P3
SPI Flash Header
Top View
1
SPI_CSN
Input
2
SPI_MOSI
Input
3
SPI_MISO
Output
4
SPI_CLK
Input
5
GND
Reference
6
3.3V
Reference